Airship



FIG. 1 is a front perspective view of a airship showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side view thereof, the left side view being a mirror image thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom view thereof.

The structural features depicted by broken lines have been shown for the purpose of illustrating portions of the airship that form no part of the claimed design. 

CLAIM The ornamental design for a airship, as shown and described. 